Results 31 to 40 of about 144,391 (309)
IEEE Access, 2019 This paper describes a compact inverted-L antenna (ILA) topology that can enhance antenna performance by utilizing one-dimensional electromagnetic bandgap (1-D EBG) ground structures and two-stage beam directors.
Jae-Yeong Lee +3 more
doaj +1 more source
Skew Incidence on Concave Wedge With Anisotropic Surface Impedance [PDF]
, 2012 The diffraction of a plane wave at skew incidence by an arbitrary-angled concave wedge with anisotropic impedance faces is studied. Concave wedges are of interest in wireless propagation models, in particular on modeling buildings and reflectors.
Lombardi, Guido, G. Lombardi
core +1 more source
Analysis of Nano-Wires at Terahertz and Optical Frequencies Using Surface Impedance Models [PDF]
AUT Journal of Electrical Engineering, 2021 Different surface impedance models are applied to circular nano-wires at terahertz and optical frequencies and the accuracy of these surface impedance boundary conditions (SIBCs) is studied.
Alireza Gholipour
doaj +1 more source
Wiener-Hopf solution for impenetrable wedges at skew incidence [PDF]
, 2006 A new Wiener-Hopf approach for the solution of impenetrable wedges at skew incidence is presented. Mathematical aspects are described in a unified and consistent theory for angular region problems.
V.G. Daniele +4 more
core +1 more source
CPE analysis by local electrochemical impedance spectroscopy [PDF]
, 2006 Constant-phase elements (CPE) are used extensively in equivalent electrical circuits for fitting of experimental impedance data. The CPE behavior is generally attributed to distributed surface reactivity, surface inhomogeneity, roughness or fractal ...
Jorcin, Jean-Baptiste +4 more
core +1 more source
Adaptive Variable-Damping Impedance Control for Unknown Interaction Environment
Mathematics, 2023 Aiming at the force-tracking error phenomenon of impedance control in an unknown surface environment, an adaptive variable-damping impedance control algorithm is proposed, and the stability and convergence of the algorithm are deduced.
Dawei Gong +5 more
doaj +1 more source
Comparison of local electrochemical impedance measurements derived frombi-electrode and microcapillary techniques [PDF]
, 2009 In the present paper, local electrochemical impedance spectrawere obtained on a 316L stainless steel from two configurations: a dual microelectrode (bi-electrode) and microcapillaries.
Jorcin, Jean-Baptiste +4 more
core +1 more source
Reflection of an acoustic line source by an impedance surface with uniform flow
, 2014 An exact analytic solution is derived for the 2D acoustic pressure field generated by a time-harmonic line mass source located above an impedance surface with uniform grazing flow. Closed-form asymptotic solutions in the far-field are also provided.
Gabard, Gwénaël +3 more
core +1 more source
Labeless Immunosensor Assay for Fluoroquinolone Antibiotics Based Upon an AC Impedance Protocol. [PDF]
, 2007 This paper describes the construction of a labeless immunosensor for the antibiotic ciprofloxacin and its interrogation using an AC impedance protocol. Commercial screen-printed carbon electrodes were used as the basis for the sensor.
Sanchez-Baeza, Francisco +16 more
core +1 more source
PLoS ONE, 2021 Electrical impedance myography (EIM) using surface techniques has shown promise as a means of diagnosing and tracking disorders affecting muscle and assessing treatment efficacy.
Sarbesh R Pandeya +6 more
doaj +2 more sources